Image recognition methods

  • US 6,763,148 B1
  • Filed: 11/13/2000
  • Issued: 07/13/2004
  • Est. Priority Date: 11/13/2000
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of converting an image into a compact form for comparisons and other purposes, comprising the steps of:

  • a) providing an image;

    b) associating a grid of points with the image, each point having an initial position;

    c) transforming the set using one or more attributes of the image by warping the grid such that some or all of the points move from their initial positions to different positions, thereby generating a unique key representative of the image.

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